OT Network Engineer
$105,000–$131,325 year
On-site · Houston, Texas, United States or Phoenix, Arizona, United States
Job Summary
Design, deploy, and maintain Cisco-based OT network infrastructure across AES US Renewables OT environments to ensure reliable, secure connectivity between data centers, substations, and field sites. Responsibilities include configuring Cisco routers, switches, and Firepower/FTD firewalls; building and monitoring IPsec/GRE tunnels; implementing SD-WAN; ensuring IT/OT network segmentation and cybersecurity compliance (e.g., NERC CIP); collaborating with IT, OT, Cybersecurity, and Operations teams; and maintaining documentation and inventories. Qualifications emphasize Cisco networking expertise, firewalling, VPNs, routing protocols, regulatory/compliance experience, and strong communication skills. The role may require up to 25% travel and field deployment support; physical ability to lift 70 lbs and climb ladders; and an annual salary in the range of $105,000–$131,325 plus bonus.
Required Qualifications
- Bachelor’s Degree (Information Technology / Computer Science / Network Engineering) preferred or equivalent with relevant work experience required.
- 5+ years’ experience to include: Cisco network engineering (routing, switching, and firewalls); Experience with Cisco Firepower/FTD, ASA, and SD-WAN platforms; Strong knowledge of IPsec/GRE VPN tunnels, BGP, OSPF, and VLAN architecture, and routing protocols (BGP, OSPF, EIGRP); Familiarity with network monitoring tools (e.g., SolarWinds, PRTG, or similar); Solid grasp of firewall rules, security zones, and remote access configurations; Experience working in regulated or compliance-driven environments; Strong written and verbal communication skills; Ability to work independently and manage multiple technical responsibilities; Physical ability to lift and maintain 70 LBS for short period of time; Ability to climb a ladder over 4 feet; Have reliable transportation; Able to travel up to 25% and in field environments during project commissioning and support remote site deployment.
- Cisco certifications (CCNA, CCNP, or equivalent)
- Experience working with industrial communication protocols (Modbus, DNP3, IEC 61850)
- Experience supporting NERC CIP compliance in OT/ICS environments
- Familiarity with SCADA protocols and IT/OT convergence
- Experience with LTE/cellular failover and remote-access VPN solutions
- Knowledge of AES infrastructure standards and operational practices
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